Blocks are good -that's what the ignore feature is intended to be, after all.Thatd be placing a block and rather petty.
From the blocker's side someone can't harass you by quoting you since they couldn't see your post.
From the blockee's side, you wouldn't have to worry about whether or not you're inadvertently harassing someone (which is a situation I think I wound up in today -and that is why it's on my mind). If you can't see them, you can't quote them -or be accussed of badgering them.
I think it would put a definite end to an argument; if one side wants to call it quits, it's quits with no ambiguity.
I'm not even sure that the board software can be modified to do a block of that sort, so I'm not putting a lot of weight on it. I simply think it would be a good thing if it could.

